I'm using HIFIMAN HE4XX  with Objective 2 Headphone Amp  connected to my onboard audio on pc,
if so what would compliment that ( i know it's pretty entry level ) so i don't wanna go overboard
thanks in advanced
		
		
	 
Do you need a DAC? Only you can answer that Adam.
If you haven't already seen it, have a read of this thread:
	
	
		
			
				
			
			
				
				I just bought myself a Dragonfly Red DAC for my Audioquest Nighthawk headphones and am struggling a bit to config this setup properly. I disabled all system enhancements in the sound config as per Audioquest's instructions and set the sample rate to 96kHz as I most often listen to Master tracks...
				
					
						
							 
						
					
					forums.whathifi.com
				
 
			 
		 
	 
Two people there bought the same DAC.
One is wondering why he bothered, the other is glad he did.
A while back I bought an O-DAC for USB to hi-fi. It was designed by the same (no nonsense) person who designed your headphone amp. Would have been an obvious partner for it, but looks like the version 2 has been discontinued.
You're right not to want to go overboard on the price. Neither did I, which is why I gave this a try:
	
	
Its lack of a case may be a deal breaker for you, but it's fairly easy to put into a case- runs off USB power from the PC.
I've tried a few DACs, been a bit sceptical, must say I'm impressed by this one though.
As a bonus, it's got a coax input too, which could be handy if you've got an old CD player (made 22 year old Philips player sound better than ever for me).